Patek Philippe Perpetual Calendar Chronograph 3970EP

A FINE AND RARE PLATINUM PERPETUAL CALENDAR CHRONOGRAPH WRISTWATCH WITH REGISTERS AND MOON-PHASES 1993 REF 3970EP MVT 876445 CASE 2928259 diameter 36 mm , • cal 27-70Q manual winding movement stamped with the seal of Geneva, 24 jewels • silvered dial, apertures for day and month, three subsidiary dials indicating constant seconds combined with 24-hour indication, 30-minute register combined with leap year indicator and date combined with fan-form aperture for moon-phases • concave bezel, screw-down case back • case, dial and movement signed • platinum Patek Philippe buckle • Extract from the Archives confirming sale 27 May 1993, box, packaging